Navigation Bar Jumping Issue in SwiftUI with TabView and NavigationStack (Observed in Apple's Example Code)

I recently started exploring the latest version of SwiftUI and came across a issue while working with TabView and NavigationStack. I downloaded Apple’s provided example code and began making changes to explore new SwiftUI changes. i added navigationtitle and toolbarBackground to first two tab. However, I noticed that the navigation bar "jumps" or resets when switching between tabs, even in their own example implementation.

Here’s a simplified version of the example code I was testing:

file name - WatchNowView

 .navigationTitle("Watch Now")
            .navigationBarTitleDisplayMode(.inline)
            .toolbarBackground(Color("AccentColor"),for: .navigationBar)

file name - LibraryView

.navigationTitle("Library")
            .navigationBarTitleDisplayMode(.inline)
            .toolbarBackground(Color("AccentColor"),for: .navigationBar)

Here is a sample code link (provided by Apple developer document) : destination-video

I have attached a gif below demonstrating this issue:

Questions:

1. Is this behavior expected in the latest version of SwiftUI, or is it a bug in the framework's handling of TabView and NavigationStack?
2. Is this behavior expected as all tabbar item have their own nativationStack?
3. Are there any official recommendations for maintaining seamless navigation experiences when using navigationStack and TabView?

This behavior detracts from the otherwise smooth experience SwiftUI aims to provide. If anyone has encountered this issue and found a workaround, I’d greatly appreciate your insights. I hope Apple can review this problem to enhance the usability of SwiftUI. Thank you!